CVE-2026-77634CWE-93

CVE-2026-77634

published August 25, 2026

CVSS
8.2
EPSS
1%
Percentile
44.8
In the wild
Unconfirmed
What it is

CakePHP is a rapid development framework for PHP. Prior to versions 4.5.12, 4.6.5, 5.1.8, 5.2.14, and 5.3.7 on their respective release lines, custom mail headers added with Message::setHeaders() or Message::addHeaders() do not have CRLF bytes removed, allowing header injection when user-controlled data is used in message headers. This issue is fixed in versions 4.5.12, 4.6.5, 5.1.8, 5.2.14, and 5.3.7.

The record
Technical detail
CVSS
8.2 · NONE
CVSS v4.0
8.2 · CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
EPSS
0.00543 · 44.8th percentile
Weakness
CWE-93 · Improper Neutralization of CRLF Sequences ('CRLF Injection')
Published
2026-08-25T01:17Z
References (5)
https://github.com/cakephp/cakephp/commit/08188962bcd99a95da1e49f62e786f2d688f1e41 · [email protected]https://github.com/cakephp/cakephp/commit/2afe42b02d8ddc5d442bca5e8bb61910a727646e · [email protected]https://github.com/cakephp/cakephp/commit/3e09dae6cbdc983754fa3a8e6aae74da102a3ea1 · [email protected]https://github.com/cakephp/cakephp/commit/b67b622457362b075bb37e625a82af73a0b3c9c3 · [email protected]https://github.com/cakephp/cakephp/security/advisories/GHSA-2qh5-382h-3jpc · [email protected]
EPSS history
Timeline
  • 26 AUG 08:27Z
    EPSS moved — → 0%
    epss
  • 24 AUG 20:33Z
    CakePHP: SmtpTransport vulnerable to CRLF header injection
    cvelistv5